EXCLUSIVE: 'Bachelorette' JoJo Fletcher Reveals Her Top Three Frontrunners

Only ET was on the set for the Bachelorette's first group date -- at a firefighter training academy -- and she dished on what guys have caught her eye so far.

"I would say three people that stood out to me so far has been Jordan, Luke, and I kind of picked up on Robby today," she told ET's Lauren Zima. "Robby was a little dark horse for me the first night, but after seeing him today, I have a good feeling about him."

So what do these three potential beaus have going for them? Let's break it down.

Yep, that’s Jordan Rodgers -- the former NFL pro and brother of star quarterback Aaron Rodgers -- who is already involved in some off-screen drama after the 27-year-old’s ex Brittany Farrar accused him of cheating on her, and chasing fame.

JoJo admitted to ET's Nancy O'Dell that she knew about Jordan before filming began.

"A week before this whole thing started I think his name got leaked, and it was kind of all over the Internet, so, you know, it's like 'Jordan Rodgers, brother of Aaron' -- so that's what I knew going into it," she shared, noting that it didn't influence her thoughts about him at all.

However, she insists that the knowledge didn't influence her perception of him in any way.

"Before I met him ... I knew just that tidbit about him, but nothing else, and I don't think it made a difference either way," JoJo added. "I don't follow football closely, so it's not like it made a huge difference, but I definitely knew that about him going into it."